| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for regenerating activated carbon, in which ignition residues can be removed and adsorptivity of the activated carbon can efficiently be restored.SOLUTION: When adsorptivity of the activated carbon, which is used in a water treatment facility and to which at least one of organic matter and inorganic matter is stuck, is restored, firstly, the resulting activated carbon is cleaned in an acid solution and secondly, the cleaned activated carbon with acid is heat-treated by a heating means. As a result, the ignition residues of the activated carbon can be removed in advance by the cleaning with acid before the heat treatment. Since the activated carbon of an ignition residue-removed state is heat-treated, the adsorptivity of the activated carbon can efficiently be restored without being disturbed by the ignition residues thereof. |
